Fix publish workflow

We need write permissions on the contents to create a GitHub release per their [example](https://github.com/ncipollo/release-action#example)

.github/workflows/release_publish.yml

@@ -8,10 +8,12 @@ on:
 jobs:
   publish:
     runs-on: ubuntu-latest
+    permissions:
+      contents: write
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: '3.8'
     - name: Install dependencies